Update dependencies. The piston_window version used in examples should now use rusttype instead of freetype!

[mitchmindtree]

This PR is in preparation for the rustc 1.8.0 stable release (which we are waiting for as a result of this issue).

The use of rusttype instead of freetype has not yet been tested and it is very possible that once 1.8.0 drops and this can be tested that we may need to review the rusttype CharacterCache implementation upstream, or re-adjust the text handling in conrod. Hopefully everything just goes smoothly and we're able to merge and publish this straight away!

This should also fix a number of issues:

• closes Examples don't work #705 (fixed by an upstream glutin commit)
• all the freetype issues: closes cannot find -lfreetype-6 #546, closes Switch from freetype bindings to the rusttype crate in order to complete the road to pure Rust. #695, closes The Road to Pure Rust #321, closes Can't run conrod on OSX 10.9.5 #706, closes Building examples fails on windows #707.

Note: travis will fail for now, but we'll re-run once travis gets 1.8.0 stable.

[bvssvni]

I was wondering to send an update, but thought you would merge #703 first.

Rust 1.8 was just announced: http://blog.rust-lang.org/2016/04/14/Rust-1.8.html

[pierrechevalier83]

Did you delete this dependency to piston on purpose?

[bvssvni]

piston_window reexports everything from piston.

[mitchmindtree]

Woohoo! rusttype seems to be working nicely!! 🎉 🎈

@dylanede thought you might wanna see :)

There's a little blurring, but no worse than what we were getting with freetype-rs, and it looks like we may be able to improve this by using rusttype's gpu cache within the gfx_graphics glyph cache implementation?

Ahh, the scizzor seems to no longer be working:

In the above image, the dropdown list should be cropped to the top and bottom of the scrollbar. Here is what the cropping should look like (compiled with current master, so the issue must have been introduced in this PR):

@bvssvni any ideas on what might be going on there? Despite how exciting it is that rusttype is working nicely, I think we should probably wait to fix this before merging 😸

[kvark]

@mitchmindtree once 0.10.2 is published, your scissor should be fixed. Would be best to confirm first, of course. Or you can just go ahead and merge now, since 0.10.2 is not a breaking change and will be picked up automatically, assuming it does fix it.

[kvark]

@mitchmindtree I've uploaded gfx-0.10.2, and your scissor should be working now.

[mitchmindtree]

@kvark Thank you kind sir, you are a legend! Just tested this locally and it's working nicely 👍

Guess it's time to publish and merge then!

Published as 0.33.0

[kvark]

@mitchmindtree sweet, I was fixing it in a blind 🙈

[bvssvni]

I'm having some problems with the graphics card on my main computer for work. Need some time to set up stuff and make purchases.